The Baseline Design of the LSST Camera

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

The Large Synoptic Survey Telescope will be a large aperture, wide-field ground-based telescope designed to survey half the sky every few nights. The LSST camera will be the largest digital camera ever built. As such, its design presents a number of challenges. The field of view will be 3.5 degrees in diameter and will be sampled by a 3.2 billion pixel array of sensors. The entire array must be read out in under 2 seconds, which leads to demanding constraints on the sensor architecture and the readout electronics. In addition, given the fast optical beam (f 1.2), the build tolerances on the assembly and alignment of the focal plane are tight. The camera incorporates three very large refractive lenses, an array of five large filters mounted on a carrousel, and a mechanical shutter.
We will present an overview of the baseline camera design, with an emphasis on key aspects of our development program. Parallel posters will discuss the details of the sensor development and of the electronics.

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